<%
response.setHeader("Cache-Control", "no-cache");
response.setHeader("Pragma", "no-cache");
response.setDateHeader("Expires", 0);

String submit_ = request.getParameter("submit_");
String action_ = request.getParameter("action_");
String errmsg  = request.getParameter("errmsg");
String perfil  = request.getParameter("perfil");

submit_ = ((submit_ == null) ? "process" : submit_);
action_ = ((action_ == null) ? "" : action_);
errmsg = ((errmsg == null) ? "" : errmsg);
perfil = ((perfil == null) ? "0" : perfil);
%>